Control system for venous intraluminal radio-frequency closure catheter

By combining multi-segment catheter coils and impedance control modules, accurate switching and combined control of catheter coils are achieved, solving the problem that the catheter cannot completely fit the blood vessel, improving the effect of venous closure, and providing a convenient and user-friendly interactive method.

WO2026118540A1 Publication Date: 2026-06-11JIANGSU BONSS MEDICAL TECH
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Patent Information

Application Number
PCT/CN2025/115503
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-12-02
Filing Date
2025-08-19
Publication Date
2026-06-11

AI Technical Summary

Technical Problem

Existing intravenous radiofrequency ablation catheters are difficult to control accurately in segments, resulting in the catheter not being able to completely adhere to the blood vessel, causing problems such as local over-ablation or incomplete ablation.

Method used

It adopts a multi-segment conduit coil and impedance control module. Through the cooperation of the main control unit, communication module, display screen and button module, it realizes impedance switching and combined control of conduit coil, uses relay unit to switch the working state of conduit coil, and provides user-friendly interaction with buttons and OLED display screen.

Benefits of technology

It achieves accurate switching and combination control of catheter coils, can adapt to the diverse needs of veins, prevents overheating from damaging surrounding tissues, improves the closure effect of veins, and does not require modification of the host hardware structure.

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Abstract

Disclosed is a control system for a venous intraluminal radio-frequency closure catheter, relating to the technical field of medical instruments. The system comprises a main control unit, a communication module electrically connected to the main control unit, an impedance control module, a display screen, a button module, and an auxiliary power supply, wherein the button module is configured to acquire a key signal on a handle; the main control unit is configured to output, by means of the communication module, an impedance control signal to the impedance control module according to the key signal; the display screen is configured to display working states of multi-segment catheter coils; the auxiliary power supply is configured to supply power to the impedance control circuit, the communication module, the display screen, and the button module. The impedance control module controls the switching of the working impedance of the multi-segment catheter coils according to the control signal, thereby achieving the control of a venous intraluminal radio-frequency closure catheter. The control system for venous intraluminal radio-frequency closure catheter can achieve accurate switching control and a combination of the multi-segment catheter coils, meet clinical diversity requirements and diversification of operator techniques, and improve the effect of venous vessel closure.
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